1.=0,2a-3b, 0,2*2,5-3*1/4=5/10-3/4=10/20-15/20=-5/20=-1/4
2.=-2х+1, -2* (-0,3)+1=1,6
3.=-3a-3b+2a-2b=-a-5b
4.=-2m-8n-4m+8n=-2m
5.=-5х-25-6х+27=2-х
1.=0,2a-3b, 0,2*2,5-3*1/4=5/10-3/4=10/20-15/20=-5/20=-1/4
2.=-2х+1, -2* (-0,3)+1=1,6
3.=-3a-3b+2a-2b=-a-5b
4.=-2m-8n-4m+8n=-2m
5.=-5х-25-6х+27=2-х